Thanks to pointing that out Maximus_Delta and Hatman (about apps, games, large amount of data would fit better at raid 0).
My setup would remain like these then:
1x Raptor for OS
1x RAID 0 (2x7200.10) for game/apps/etc
1x 7200.11 for important data (isolated from RAID 0 just in case
)
I guess its ok?